/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package l1j.jrwz.server.datatables;

import java.lang.reflect.Constructor;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import l1j.jrwz.L1DatabaseFactory;
import l1j.jrwz.server.model.trap.L1Trap;
import l1j.jrwz.server.storage.TrapStorage;
import l1j.jrwz.server.utils.SQLUtil;

public class TrapTable {
    private class SqlTrapStorage implements TrapStorage {
        private final ResultSet _rs;

        public SqlTrapStorage(ResultSet rs) {
            _rs = rs;
        }

        @Override
        public boolean getBoolean(String name) {
            try {
                return _rs.getBoolean(name);
            } catch (SQLException e) {
            }
            return false;
        }

        @Override
        public int getInt(String name) {
            try {
                return _rs.getInt(name);
            } catch (SQLException e) {

            }
            return 0;
        }

        @Override
        public String getString(String name) {
            try {
                return _rs.getString(name);
            } catch (SQLException e) {
            }
            return "";
        }
    }

    private static Logger _log = Logger.getLogger(TrapTable.class.getName());

    private static TrapTable _instance;

    public static TrapTable getInstance() {
        if (_instance == null) {
            _instance = new TrapTable();
        }
        return _instance;
    }

    public static void reload() {
        TrapTable oldInstance = _instance;
        _instance = new TrapTable();

        oldInstance._traps.clear();
    }

    private final Map<Integer, L1Trap> _traps = new HashMap<Integer, L1Trap>();

    private TrapTable() {
        initialize();
    }

    private L1Trap createTrapInstance(String name, TrapStorage storage)
            throws Exception {
        final String packageName = "l1j.jrwz.server.model.trap.";

        Constructor<?> con = Class.forName(packageName + name).getConstructor(
                new Class[] { TrapStorage.class });
        return (L1Trap) con.newInstance(storage);
    }

    public L1Trap getTemplate(int id) {
        return _traps.get(id);
    }

    private void initialize() {
        Connection con = null;
        PreparedStatement pstm = null;
        ResultSet rs = null;

        try {
            con = L1DatabaseFactory.getInstance().getConnection();

            pstm = con.prepareStatement("SELECT * FROM trap");

            rs = pstm.executeQuery();

            while (rs.next()) {
                String typeName = rs.getString("type");

                L1Trap trap = createTrapInstance(typeName, new SqlTrapStorage(
                        rs));

                _traps.put(trap.getId(), trap);
            }
        } catch (SQLException e) {
            _log.log(Level.SEVERE, e.getLocalizedMessage(), e);
        } catch (Exception e) {
            _log.log(Level.SEVERE, e.getLocalizedMessage(), e);
        } finally {
            SQLUtil.close(rs);
            SQLUtil.close(pstm);
            SQLUtil.close(con);
        }
    }
}
